Triturating and reducing mill.



G. J. BEST. TRITURATING AND REDUCING MILL.

APPLICATION FILED AUG. 1, 190a.

936,,"F9 Patented 0011.5,1909. 2 BHEET8-8HEET 1.

G J. BEST. TBITURATING AND REDUCING MILL.

APPLIQATION FILED AUG. 1, 1908.

fizz 6 72,50?"

Patented 0013.5,19Q9.

2 SHEETS-SHEET 2.

- UNITED TATES; PATENT onnio.

CITARLES J. BEST, OF OAKLAND, fiALIFORNIA.

EFEITUEATING am nenucmo MILL.

Specification of Letters Patent.

Application filed August 1, 1908. Serial No. 446,875.

To all whom it may concern:

Be itknown that I, CHARLES J. BEET, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented a certain new and useful Improvement in Triturating and Reducing Mills, of which the following is a specification.

My invention relates to reducing mills and has for its object to provide certain new and useful mechanism in devices of this kind.

It is illustrated in the accompanying drawings wherein- Figure 1 is a plan view of a mill with the driving inechansim ,above removed; liig 2 is a vertical section on line 22 of Fig; 1.

Like parts are indicated by the same letter in all the figures.

A A are supports on which the base piece B rests. This latter is provided with an upwardly extending grooved supporting ring C in which run the balls C and it is also provided with an upwardly extending socket C in which rests the driving shaft C The latter is rounded at its lower end C and hardened and supported on bronze washers C The driving shaft is received into a socket D and it carries a beveled gear D secured to it by means of the key D This bevel gear meshes with the pinion D on the shaft 1) supported by the hangers l) I) and supplied with the fast and loose pulleys D D.

E is a. shortshaftsupported on standards E E and carrying the fast and loose pulleys I), E and at its outer end the beveled inion E which meshes with the bevel gear 1" which is bolted at E E to the,pan E which comprises a. central sleeve E surroundingithe shaft G a cone shaped extension E" connected with such sleeve, a groove like surface composed of the removable lin ing rings E E" and the lowergroove E whereby it rests on the balls C C. ()n the outer rim of this pan'arc raised cleats F F whereby the circular sieve F is supported. The'buter rim of the pan is downwardly turned at F to give delivery to the annular trough G wv-hich fixedly supported on the standards G G which are in turn made fast to some fixed portion of the building or. apparatus. The trough is inclined and lies immediately" an der the outside rim of the pan and is provided at its lowest side with the discharge chute G l of the balls L is independently and- J is a plate having the central sleeve J which receives the shaft C and to which it is secured by the feather J Rising from this plate are a series of short standards J each provided with an opening in its upper end to receive the shaft J of an idler roller J Projecting outwardly from the plate J are the short shafts K K each provided at its outer extremity with the collar K secured in position by the transverse bolt K and each provided with a. downwardly depending finger K at its outer end. To each of these fingers is attached a brush K. These brushes brush the inside of the sieve.

. L Lare wheels each hollowed at L and thicker on its cuter than on its inner side. Each of these wheels is supported by means These balls are held in position in a kind of raceway by the collars L".

I have not shown the chutes for supplying the. material underneath the crushing wheels nor the pipe for supplying water. Either can be arranged or disposed of as may be desired. By having the crushing wheels hollow it is obvious that they may be more or less filled to vary their effective weight. I have shown the parts in an operative structure and yet they can be greatly varied withoutdeparting from the. spirit.

of my invention and some of the elements shown might be dispensed with and others substituted for them.

The use and operation of my invention are as follows: The material to'bc crushed or pulverized is fed in a proper stream into the pan where it will most conveniently run under the crushing wheels into the. grooye. This pan is kept or depression in the pan. in rotation by means of the short shaft ii and its pinion which meshes with the gear on the-bottom of the pan. The crushing wheels being mounted on the plate J are driven by the shaft C and are. made to travel in the opposite direction. Thuspvith a comparatively low speed a relatively thigh effective s eed of rotation issecured. As the material is crushed or powdered or pulverized the effect of the rotating bodies is to throwit outwardly where the finer portions 1 pass through the sieve out into the trough and arecarired away to the storing receptacle. The brushes on the upper rotating crushing, wheel frame serve meshes of the sieve free.

I claim: i

In a. reducing mill, the combination of Patented Oct. 5, icon.

to keep the given direction, balls on which the pan is supported, in the grooved support of the frame, a receiving trough which surrounds and underlies the edge of the pan, a crushing frameconsisting of laterally projecting arms, and a sleeve whereby it is feathered on the shaft, hollow wheels mounted-on the arms and adapted to travel in the trough of the pan, arms upwardly projecting from the arms of the' crushing frame, idlers thereon bearing against the inner upper portion of therotating crusher wheels, and overhead drivingmechanism whereby the shaft is driven 20 in a direction opposite to that of the pan.

CHARLES J. BEST.

Witnesses: v,

SOPHIE B. WERNER, EDNA K. REYNOLDS. 

